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Elodia [21]
3 years ago
10

Solve x^2 + 4x + 8 = 0

Mathematics
1 answer:
Mkey [24]3 years ago
8 0

Answer:

x = -2 + 2 i or x = -2 - 2 i

Step-by-step explanation:

Solve for x:

x^2 + 4 x + 8 = 0

Subtract 8 from both sides:

x^2 + 4 x = -8

Add 4 to both sides:

x^2 + 4 x + 4 = -4

Write the left hand side as a square:

(x + 2)^2 = -4

Take the square root of both sides:

x + 2 = 2 i or x + 2 = -2 i

Subtract 2 from both sides:

x = -2 + 2 i or x + 2 = -2 i

Subtract 2 from both sides:

Answer:  x = -2 + 2 i or x = -2 - 2 i

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Answer:

One of the possible dimensions of the full trailer could be 5 by 12 by 3.

Step-by-step explanation:

Volume = weight times height times length = 12 times 5 times 3 = 180.

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3 years ago
F(x) = 3 - 2x and g(x) =<br> 1/X+5 what is the value of<br> (f/g)(8)
Nina [5.8K]

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Answer:

  (f/g)(8) = -104/41

Step-by-step explanation:

Fill in the value for x and do the arithmetic.

  f(8) = 3 -2·8 = 3 -16 = -13

  g(8) = 1/8 +5 = (1+40)/8 = 41/8

Then the ratio is ...

  (f/g)(8) = f(8)/g(8) = -13/(41/8) = -13(8)/41

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2 years ago
Adrienne can make of a bracelet in hour. How many bracelets can she make in 1 hour?
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3 years ago
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An infinite geometric series converges if the
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An infinite geometric series converges if the common ratio is a proper fraction
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Match the probability formula with the correct probability name.
steposvetlana [31]

Answer:

a. independent event  P(AuB)=P(A)+P(B)

b. mutually exclusive event  P(AuB) = P(A) + P(B) - P(AnB)

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Step-by-step explanation:

a. For two events A and B the union of the two sets is  simply all the elements present in both set. This can be expressed as

P(AuB)=P(A)+P(B)

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P(A and B) = P(A).P(B)

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